CN205080003U - Mechanics characteristic test appearance of biological soft tissue - Google Patents

Mechanics characteristic test appearance of biological soft tissue Download PDF

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Publication number
CN205080003U
CN205080003U CN201520508246.XU CN201520508246U CN205080003U CN 205080003 U CN205080003 U CN 205080003U CN 201520508246 U CN201520508246 U CN 201520508246U CN 205080003 U CN205080003 U CN 205080003U
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CN
China
Prior art keywords
measuring head
soft tissue
mechanical property
seat
testing instrument
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Expired - Fee Related
Application number
CN201520508246.XU
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Chinese (zh)
Inventor
冯原
唐汉民
孙立宁
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Zhangjiagang Institute of Industrial Technologies Soochow University
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Zhangjiagang Institute of Industrial Technologies Soochow University
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Priority to CN201520508246.XU priority Critical patent/CN205080003U/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a mechanics characteristic test appearance of biological soft tissue, comprising a frame body, the measuring head holder, by tester anchor clamps seat, collection system, the computer, at least two sets of measuring head, at least two sets of anchor clamps, at least two sets of displacement sensor and at least two sets of pressure sensor, set up on the workstation of support body by tester anchor clamps seat, a set of in at least two sets of measuring head is installed on the measuring head holder by selective, a set of among at least two sets of pressure sensor is installed on the measuring head holder by selective, a set of among at least two sets of displacement sensor is installed on the support body by selective, a set of in at least two sets of anchor clamps is installed on by tester anchor clamps seat by selective, collection system gather pressure sensor to the amount of movement that detects of pressure value and collection displacement sensor, computer and collection system signal connection, with analysis pressure value and amount of movement.

Description

The mechanical property testing instrument of biologic soft tissue
Technical field
The utility model relates to a kind of mechanical property testing instrument of biologic soft tissue, belongs to the checkout equipment of biological tissue.
Background technology
The mechanical property testing of biological tissue is important link in the research and development process of organizational project, medicine equipment.Because biologic soft tissue is according to the difference of the difference of itself and form, feature, its mechanical characteristic is also different, biological tissue's mechanical property testing main at present comprises extruding test, extension test and shearing test, testing experiment instrument is as Bose5500 series, Instron5900, CSMbioindenter series, TestResource100 series, but all there is following shortcoming in existing testing experiment instrument:
1. tested object is more single, and existing often kind of testing experiment instrument only can realize the test to specific tested object, and testing range and test specification are all restricted.
2. test function is more single, and existing often kind of testing experiment instrument only can test specific function.
3., because tested object is more single and test function is more single, so when making to need to detect a certain tester, need multiple stage testing experiment instrument to complete, cause high cost.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of mechanical property testing instrument of biologic soft tissue of new structure, make it have more value in industry.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide the variation of a kind of tested object, and the mechanical property testing instrument of biologic soft tissue that can realize multiple test function and can reduce costs.
The mechanical property testing instrument of a kind of biologic soft tissue of the present utility model, comprise support body, be arranged on the measuring head holder on described support body, tested thing clamping fixture seat, harvester and computing machine, described support body comprises worktable, described tested thing clamping fixture seat is arranged on described worktable, and be positioned at the below of described measuring head holder, the mechanical property testing instrument of described biologic soft tissue also comprises the measuring head that at least two groups can be replaced mutually, the fixture that at least two groups can be replaced mutually, the displacement transducer that at least two groups can be replaced mutually and the pressure transducer that at least two groups can be replaced mutually, one group in described at least two group measuring heads is optionally arranged on described measuring head holder, one group in described at least two group pressure transducers is optionally arranged on described measuring head holder, described pressure transducer detect described measuring head be applied to force value on tested thing, one group in described at least two group displacement transducers is optionally arranged on described support body, institute's displacement sensors detects the amount of movement of described measuring head, one group in described at least two group fixtures is optionally arranged on described tested thing clamping fixture seat, the force value that described harvester collection pressure transducer detects and the amount of movement that collection displacement transducer detects, described computing machine is connected with harvester signal, to analyze described force value and amount of movement.
Further, the installing plate of two clamping plate be oppositely arranged and fixing described clamping plate is comprised by the described fixture be optionally arranged on described tested thing clamping fixture seat, described installing plate is arranged on described measured object clamping fixture seat, described each clamping plate comprise the first plate portion and the second plate portion, described first plate portion and the splicing of the second plate portion are in L font, the lateral surface in described first plate portion is formed with some vertically disposed conduits, described second plate portion offers some through holes.
Further, described installing plate offers dovetail groove, the lateral surface in the second plate portion of described clamping plate outwards protrudes out and is formed with dovetails, described dovetail groove coordinates with described dovetails.
Further, described through hole is positioned at the both sides of described dovetails.
Further, described tested thing clamping fixture seat comprises the base fixed on the table, the Y-axis seat being arranged on the X-axis seat on described base and being arranged on X-axis seat, described X-axis seat can move relative to the fore-and-aft direction of described base along worktable, described Y-axis seat can move relative to the left and right directions of described X-axis seat along worktable, and described fixture is arranged on described Y-axis seat.
Further, described base and X-axis seat all upwards protrude out dovetails, described X-axis seat and Y-axis seat have been respectively arranged with the dovetail groove coordinated with the dovetails on base and X-axis seat.
Further, described measuring head holder, pressure transducer and measuring head are connected in series from top to bottom successively in row.
Further, described measuring head is fixed on measuring head holder by chuck, and described chuck is dismountable to be arranged on below described pressure transducer.
Further, described support body also comprises the jacking gear be vertically fixed on described worktable and the fixed head be fixed on described jacking gear, and described measuring head holder is dismountable to be arranged on described fixed head.
Further, described support body also comprises the slide bar be vertically arranged on described worktable, described slide bar is clamped with displacement transducer mount pad, institute's displacement sensors is arranged on institute's displacement sensors mount pad, described slide bar and jacking gear are oppositely arranged on the both sides of described tested thing clamping fixture seat, and institute's displacement sensors mount pad moves up and down along described slide bar.
By such scheme, the utility model at least has the following advantages: the mechanical property testing instrument of biologic soft tissue of the present utility model due to measuring head, fixture, displacement transducer and pressure transducer be that the measuring head of different model, fixture, displacement transducer and pressure transducer can be installed according to the actual requirements and optionally, thus make this tested object variation, multiple test function can be realized, and owing to can realize multi-object test and multiple test function with a kind of mechanical property testing instrument of biologic soft tissue, thus can reduce costs, and applicability is wide.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of instructions, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mechanical property testing instrument of the utility model biologic soft tissue;
Fig. 2 is the structural representation of fixture in Fig. 1;
Fig. 3 is the explosive view of the fixture shown in Fig. 2;
Fig. 4 is the enlarged drawing of encircled portion in Fig. 3;
Fig. 5 is the structural representation of part-structure in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
See Fig. 1 to Fig. 5, the mechanical property testing instrument 100 of a kind of biologic soft tissue described in the utility model one preferred embodiment is in order to test organisms soft tissue (calling tester in the following text) (not shown), it comprises support body 10, be arranged on the measuring head holder 20 on described support body 10, tested thing clamping fixture seat 30, at least two groups can test different tested thing maybe can test different qualities and the measuring head 50 that can mutually replace, at least two groups can replace the fixture 60 of fixing different tested thing mutually, at least two groups can replace the displacement transducer (not shown) detecting different range ability mutually, at least two groups can replace the pressure transducer 70 detecting different pressures value scope mutually, harvester (not shown) and computing machine (not shown).The slide bar 15 that described support body 10 comprises worktable 11, is vertically fixed on jacking gear 12 on described worktable 11, is fixed on the fixed head 13 on described jacking gear 12 and is vertically arranged on described worktable 11.Described jacking gear 12 comprises the pedestal 121 be vertically arranged on described worktable 11, the spindle motor 122 being arranged on described pedestal 121 top, the movable block 124 that is arranged on the leading screw 123 in described pedestal 121 and is arranged on described leading screw 123.Leading screw 123 and spindle motor 122 are electrically connected, and this leading screw 123 is controlled to rotate by spindle motor 122.Described leading screw 123 both sides are provided with the polished rod 126 be arranged in parallel with described leading screw 123, described movable block 124 offers the threaded hole 127 coordinated with described leading screw 123 and the polished rod hole 128 being positioned at described threaded hole 127 both sides, described polished rod 126 is through described polished rod hole 128.Described fixed head 13 is fixed on movable block 124.Described slide bar 15 and jacking gear 12 are oppositely arranged on the both sides of described tested thing clamping fixture seat 30, institute's displacement sensors is arranged on this slide bar 15, in the present embodiment, this slide bar 15 is clamped with displacement transducer mount pad 40, displacement transducer mount pad 40 can move up and down along described slide bar 15, and institute's displacement sensors is arranged on displacement transducer mount pad 40.In the present embodiment, the replacing of displacement transducer is realized by change bit displacement sensor mount pad 40.
Described tested thing is fixed by fixture 60, and described tested thing clamping fixture seat 30 is arranged on described worktable 11, and is positioned at the below of described measuring head holder 20.One group in described at least two group fixtures 60 is optionally arranged on described tested thing clamping fixture seat 30.In the present embodiment, the described installing plate 62 being comprised two clamping plate be oppositely arranged 61 and fixing described clamping plate 61 by the fixture 60 be optionally arranged on described tested thing clamping fixture seat 30, described installing plate 62 is two, correspondence fixes clamping plate 61 respectively, described each installing plate 62 is arranged on described measured object clamping fixture seat 30 by securing member (not shown), and described each installing plate 62 offers the first dovetail groove 63.Described each clamping plate 61 comprise the first plate portion 611 and the second plate portion 612, described first plate portion 611 and the splicing of the second plate portion 612 are in L font, the lateral surface in described first plate portion 611 is formed with some vertically disposed conduits 613, described second plate portion 612 offers some through holes 614.The lateral surface in the second plate portion 612 of described clamping plate 61 outwards protrudes out and is formed with the first dovetails 615, described through hole 614 is positioned at the both sides of described first dovetails 615, and described first dovetail groove 63 coordinates with described first dovetails 615.Described clamping plate 61 are fixed by screws on installing plate 62.Fixture 60 in the present embodiment can realize fixing two kinds of different tested things, when the conduit 613 in the first plate portion 611 and the conduit 613 in the second plate portion 612 are oppositely arranged, this fixture 60 can clamp block tested thing, the conduit 613 in the first plate portion 611 and conduit 613 in the second plate portion 612 is opposing when arranging, this fixture 60 can clamp strip or the tested thing of film-form.
The Y-axis seat 33 that described tested thing clamping fixture seat 30 comprises the base 31 be fixed on worktable 11, is arranged on the X-axis seat 32 on described base 31 and is arranged on X-axis seat 32, described X-axis seat 32 can move relative to the fore-and-aft direction of described base 31 along worktable 11, described Y-axis seat 33 can move relative to the left and right directions of described X-axis seat 32 along worktable 11, and described fixture 60 is arranged on described Y-axis seat 33.For the ease of mobile X-axis seat 32 and Y-axis seat 33, described X-axis seat 32 and Y-axis seat 33 are respectively arranged with handle portion 34.Described base 31 and X-axis seat 32 all upwards protrude out the second dovetails 35, described X-axis seat 32 and Y-axis seat 33 have been respectively arranged with the second dovetail groove 36 coordinated with the second dovetails 35 on base 31 and X-axis seat 32.
One group in described at least two group measuring heads 50 is optionally arranged on described measuring head holder 20, one group in described at least two group pressure transducers 70 is optionally arranged on described measuring head holder 20, described pressure transducer 70 detect described measuring head 50 be applied to force value on tested thing, one group in described at least two group displacement transducers is optionally arranged on institute's displacement sensors mount pad 40, and institute's displacement sensors detects the amount of movement of described measuring head 50.Described measuring head 50, pressure transducer 70 and displacement transducer select applicable measuring head 50, pressure transducer 70 and displacement transducer according to the object that will test of reality and/or test function.Described measuring head holder 20, pressure transducer 70 and measuring head 50 are connected in series from top to bottom successively in row.In the present embodiment, described measuring head 50 is fixed on measuring head holder 20 by chuck 80, and described chuck 80 is dismountable to be arranged on below described pressure transducer 70.Described chuck 80 has installation cavity (not shown) and forms the wall body 81 of described installation cavity, this wall body 81, in cylinder, described wall body 81 offers narrow slit 82, when measuring head is knife blade, this narrow slit 82 fixing operation blade, its width designs according to knife blade width criteria.Described measuring head 50 is pressure head, this pressure head is the column indenter indentation, really, this pressure head can adopt the pressure head of other geometry in particular according to tested object mechanical characteristic, pressure head 50 in the present embodiment has pressure head portion 51 and the body of rod 52 formed that stretches out from described pressure head portion 51, the described body of rod 52 stretches in described installation cavity, and is fixed by securing member (not shown).In the present embodiment, connected mode between each parts of described fixture 60 is as follows: be threaded connection between described measuring head holder 20 and pressure transducer 70, being threaded connection between described pressure transducer 70 and chuck 80, is grafting between described chuck 80 and pressure head 50.Described measuring head holder 20 is dismountable to be arranged on described fixed head 13.Certainly, in other embodiments, this measuring head 50 can want test function according to actual institute or/and tester classification and select other types, when puncturing as tested, this measuring head 50 can adopt puncture needle; Or during test material damage feature, this measuring head 50 can adopt knife blade.
Described harvester gathers force value that pressure transducer 70 detects and gathers the amount of movement that displacement transducer detects, described computing machine is connected with harvester signal, and described computing machine receives detection data that this harvester gathers to analyze.
The principle of work of mechanical property testing instrument 100 when completing extruding test of the biologic soft tissue in the present embodiment is as follows: first, select the mounting means of clamping plate 61, be arranged on by measured object on fixture 60 according to measured object; Pressure head 50, pressure transducer 70 and displacement transducer is selected according to measured object, and selected pressure head 50, pressure transducer 70 and displacement transducer are installed, its mounting means is: displacement transducer is arranged on displacement transducer mount pad 40, pressure transducer 70 is arranged on tested thing clamping fixture seat 30, chuck 80 is arranged on pressure transducer 70, pressure head 50 is arranged on chuck 80; Then, according to actual needs pull handle portion 34 to regulate the position of measured object; Finally, start spindle motor 122, slowly move down to make pressure head 50 and tested thing is exerted pressure detections, now, pressure transducer 70 detect pressure head 50 be applied to force value on tested thing, the displacement of displacement transducer detection pressure head 50; Harvester gathers the detection data of displacement transducer and pressure transducer 70, and computing machine receives detection data that this harvester gathers to analyze.When the mechanical property testing instrument 100 of this biologic soft tissue has needed extension test and shearing test, only need to change measuring head 50.And when the mechanical property testing instrument 100 of biologic soft tissue needs to detect other tested things or detect range change, only need according to tested thing change in corresponding fixture 60, measuring head, pressure transducer 70 and displacement transducer one or more, thus make tested object variation, realize multiple test function, contribute to reducing costs.
In sum, the mechanical property testing instrument 100 of above-mentioned biologic soft tissue is because measuring head 50, fixture 60, displacement transducer and pressure transducer 70 are for according to the actual requirements and optionally installing the measuring head 50 of different model, fixture 60, displacement transducer and pressure transducer 70, thus make this tested object variation, multiple test function can be realized, and owing to can realize multi-object test and multiple test function with a kind of mechanical property testing instrument 100 of biologic soft tissue, thus can reduce costs, and applicability is wide.
The above is only preferred implementation of the present utility model; be not limited to the utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.

Claims (10)

1. the mechanical property testing instrument of a biologic soft tissue, comprise support body, be arranged on the measuring head holder on described support body, tested thing clamping fixture seat, harvester and computing machine, described support body comprises worktable, described tested thing clamping fixture seat is arranged on described worktable, and be positioned at the below of described measuring head holder, it is characterized in that: the mechanical property testing instrument of described biologic soft tissue also comprises the measuring head that at least two groups can be replaced mutually, the fixture that at least two groups can be replaced mutually, the displacement transducer that at least two groups can be replaced mutually and the pressure transducer that at least two groups can be replaced mutually, one group in described at least two group measuring heads is optionally arranged on described measuring head holder, one group in described at least two group pressure transducers is optionally arranged on described measuring head holder, described pressure transducer detect described measuring head be applied to force value on tested thing, one group in described at least two group displacement transducers is optionally arranged on described support body, institute's displacement sensors detects the amount of movement of described measuring head, one group in described at least two group fixtures is optionally arranged on described tested thing clamping fixture seat, the force value that described harvester collection pressure transducer detects and the amount of movement that collection displacement transducer detects, described computing machine is connected with harvester signal, to analyze described force value and amount of movement.
2. the mechanical property testing instrument of biologic soft tissue according to claim 1, it is characterized in that: the installing plate being comprised two clamping plate be oppositely arranged and fixing described clamping plate by the described fixture be optionally arranged on described tested thing clamping fixture seat, described installing plate is arranged on described measured object clamping fixture seat, described each clamping plate comprise the first plate portion and the second plate portion, described first plate portion and the splicing of the second plate portion are in L font, the lateral surface in described first plate portion is formed with some vertically disposed conduits, described second plate portion offers some through holes.
3. the mechanical property testing instrument of biologic soft tissue according to claim 2, it is characterized in that: described installing plate offers dovetail groove, the lateral surface in the second plate portion of described clamping plate outwards protrudes out and is formed with dovetails, described dovetail groove coordinates with described dovetails.
4. the mechanical property testing instrument of biologic soft tissue according to claim 3, is characterized in that: described through hole is positioned at the both sides of described dovetails.
5. the mechanical property testing instrument of biologic soft tissue according to claim 3, it is characterized in that: described tested thing clamping fixture seat comprises the base fixed on the table, the Y-axis seat being arranged on the X-axis seat on described base and being arranged on X-axis seat, described X-axis seat can move relative to the fore-and-aft direction of described base along worktable, described Y-axis seat can move relative to the left and right directions of described X-axis seat along worktable, and described fixture is arranged on described Y-axis seat.
6. the mechanical property testing instrument of biologic soft tissue according to claim 5, it is characterized in that: described base and X-axis seat have all upwards protruded out dovetails, described X-axis seat and Y-axis seat are respectively arranged with the dovetail groove coordinated with the dovetails on base and X-axis seat.
7. the mechanical property testing instrument of biologic soft tissue according to claim 1, is characterized in that: described measuring head holder, pressure transducer and measuring head are connected in series from top to bottom successively in row.
8. the mechanical property testing instrument of biologic soft tissue according to claim 7, is characterized in that: described measuring head is fixed on measuring head holder by chuck, and described chuck is dismountable to be arranged on below described pressure transducer.
9. the mechanical property testing instrument of biologic soft tissue according to claim 7, it is characterized in that: described support body also comprises the jacking gear be vertically fixed on described worktable and the fixed head be fixed on described jacking gear, and described measuring head holder is dismountable to be arranged on described fixed head.
10. the mechanical property testing instrument of biologic soft tissue according to claim 9, it is characterized in that: described support body also comprises the slide bar be vertically arranged on described worktable, described slide bar is clamped with displacement transducer mount pad, institute's displacement sensors is arranged on institute's displacement sensors mount pad, described slide bar and jacking gear are oppositely arranged on the both sides of described tested thing clamping fixture seat, and institute's displacement sensors mount pad moves up and down along described slide bar.
CN201520508246.XU 2015-07-14 2015-07-14 Mechanics characteristic test appearance of biological soft tissue Expired - Fee Related CN205080003U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104977211A (en) * 2015-07-14 2015-10-14 苏州大学张家港工业技术研究院 Mechanical property tester for biological soft tissue
CN106370519A (en) * 2016-10-13 2017-02-01 苏州大学张家港工业技术研究院 Tester for micromechanical properties of biological soft tissue
CN107941613A (en) * 2017-11-15 2018-04-20 江苏铂影数据科技有限公司 Biological respinse and soft tissue mechanics multifunctional testing integrated instrument
WO2018188105A1 (en) * 2017-04-12 2018-10-18 苏州大学 Soft tissue simulator for magnetic resonance test and simulation test method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104977211A (en) * 2015-07-14 2015-10-14 苏州大学张家港工业技术研究院 Mechanical property tester for biological soft tissue
CN104977211B (en) * 2015-07-14 2018-07-13 苏州大学张家港工业技术研究院 The mechanical property testing instrument of biologic soft tissue
CN106370519A (en) * 2016-10-13 2017-02-01 苏州大学张家港工业技术研究院 Tester for micromechanical properties of biological soft tissue
WO2018068338A1 (en) * 2016-10-13 2018-04-19 苏州大学张家港工业技术研究院 Tester for micromechanical properties of biological soft tissue
WO2018188105A1 (en) * 2017-04-12 2018-10-18 苏州大学 Soft tissue simulator for magnetic resonance test and simulation test method
US10859660B2 (en) 2017-04-12 2020-12-08 Soochow University Soft tissue simulator for magnetic resonance testing and method for simulated testing
CN107941613A (en) * 2017-11-15 2018-04-20 江苏铂影数据科技有限公司 Biological respinse and soft tissue mechanics multifunctional testing integrated instrument

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Granted publication date: 20160309

Termination date: 20180714